SPIDER MUTANTS is a game included in the DISK3 package of the registered version of the XTENDER 1.22 emulator, by Carlo Delhez. But due to a bug it was unplayable as it left a trail when moving the ship to the left (probably an error generated during tape conversion).
Recently I found the bug and fixed it, then I leave below two versions to be downloaded, the original in German and the one translated into English.
Spider Mutants - by P.Wailand (1985)
Spider Mutants - by P.Wailand (1985)
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org
https://toddysoftware.itch.io/
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org
https://toddysoftware.itch.io/